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Molecular Genetics › ViewWhich of the following is not a post-transcriptional modification of mRNA?
A. addition of poly-A tail
B. addition of 5′ cap
C. removal of introns
D. removal of exons
Biochemistry › View
What are carbohydrates composed of?
A. Carbon, nitrogen, and oxygen
B. Carbon, hydrogen, and oxygen
C. Hydrogen, oxygen, and phosphorus
D. Carbon, hydrogen, and nitrogen